TPine Technology

Any device whose MAC address begins with 00:1B:20 has a network interface built by TPine Technology. This prefix (the OUI, or Organizationally Unique Identifier) is assigned by the IEEE and is the first three octets of the address.

OUI prefix

00:1B:20

Organization

TPine Technology

Address

3F, No.1, AN-I Rd, Keelung TW 111

Source

IEEE OUI registry

Have a full MAC address? Look it up— we'll also tell you if it's a randomized (private) address rather than a real manufacturer prefix.